1390990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{7321}}^1$

素因数の和:7347

約数の個数: 16

約数和(自身を含む): 2635920

約数和(自身を除く): 1244930

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 7321, 14642, 36605, 73210, 139099, 278198, 695495, 1390990]

約数ペア:

[(1, 1390990), (2, 695495), (5, 278198), (10, 139099), (19, 73210), (38, 36605), (95, 14642), (190, 7321)]